Research On Multifunctional Smarthome System Based On Zigbee And Raspberry Pi

With the emergence of new things in our vision,high-tech is no longer on the shelf,people are looking forward to technology to bring comfort and convenience to daily life,smart home came into being.Smart home system uses modern network technology to combine detection node and function node,to create a new family environment for people,and provide new experience for people's life.In this paper,through in-depth research and analysis of the development status and characteristics of smart home,a smart home system based on ZigBee and raspberry school is designed.The system uses wireless sensor network as the transmission method,connects with the Internet,and realizes home monitoring and control through computer or phone login.CC2530 chip is selected as the hardware support of ZigBee technology,and the peripheral circuit,temperature and humidity data acquisition circuit,combustible gas detection circuit and infrared detection circuit of CC2530 chip are designed.The transplant and development of wireless network software based on Z-stack protocol are completed.Raspberry pi 3B + is used as the hardware platform to realize the Linux operating system,Tomcat server,MySQL server and other software functions.The system realizes the design of user interface based on Internet,which is convenient for users to monitor and control the home environment.Finally,this paper tests the performance of the system,verifies the self-healing ability of the system when the routing node suddenly loses power,analyzes the influence of the node distance on the data transmission performance,and determines the layout method of the terminal node and coordinator.The accuracy of the acquisition circuit and the control of the system are tested.Experiments show that the system can realize the functions of temperature and humidity monitoring,lighting control,home appliance control,infrared safety monitoring,natural gas safety monitoring,network management and real-time display.The system has the characteristics of flexibility,expansibility,low cost,low power consumption and simple operation.The system has a certain self-healing function,high measurement accuracy,stable control operation,and can better meet the needs of people for comfortable life.